<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<link rel="stylesheet" href="bootstrap.min.css">
	</head>
	<body>
		<nav class="navbar navbar-default" role="navigation">
			<div class="container-fluid">
				<div class="navbar-header">
					<a class="navbar-brand" href="">wow</a>
				</div>
				<div class="collapse navbar-collapse">
					<ul class="nav navbar-nav" id="mytab">
						<li class="active"><a href="">Link</a></li>
						<li><a href="">Link</a></li>
						<li><a href="">Link</a></li>
					</ul>
					<form class="navbar-form navbar-left" role="search">
						<div class="form-group">
							<input type="text" class="form-control" placeholder="按关键词" />
						</div>
						<button type="submit" class="btn btn-default">搜索</button>
					</form>
					<ul class="nav navbar-right navbar-nav">
						<li><a href="">Link</a></li>
						<li class="dropdown">
							<a href="#" class="dropdown-toggle" data-toggle="dropdown">点我<span class="caret"></span></a>
							<ul class="dropdown-menu" role="menu">
								<li><a href="#">hello1</a></li>
								<li><a href="#">hello2</a></li>
								<li><a href="#">hello3</a></li>
								<li><a href="#">hello4</a></li>
							</ul>
						</li>
					</ul>
				</div>
			</div>
		</nav>
		<nav class="nav navbar-default navbar-fixed-bottom" role="navigation">
			<ol class="breadcrumb">
				<li><a href="">Home</a></li>
				<li><a href="">About</a></li>
				<li><a href="">Library</a></li>
			</ol>
		</nav>
		<script src="jquery-3.4.1.min.js"></script>
		<script src="bootstrap.min.js"></script>
		<script>
			$("#mytab a").click(function(e){
				e.preventDefault();
				$(this).tab("show");
			});
		</script>
	</body>
</html>
